Hi Tim

> So my main questions is: can the 143-9 get any range of 1 v/oct tracking And if so, how large is the range

I don't know the schematics but I assume, it has the same lin/exp
converter as the new A-131 or similar modules. So it means:
1.) its not temperature compensated
2.) it has no high rage calibration and will be for sure not "octave
clean" in upper ranges.
3.) it may be (but doesn't have to be) slightly off 1v/oct.

For Details we have to await Dieters response.

Florian